The allegation against Shannon, who will be a junior this upcoming season, was made under a Title IX sexual misconduct allegation report, which must be reported by the university. According to the report, the local authorities are also investigating the incident but no charges have been filed.

Shannon led the Sooners in total tackles last season, with 92, including seven for loss. He had seven tackles in Oklahoma's upset victory over Alabama in the Sugar Bowl.

Shannon did not play in the team's spring football game last Saturday, and Sooners coach Bob Stoops said it was due to Shannon dealing with “personal issues.”

According to the report, the woman alleges that after a party, she intended to walk home. Shannon offered her a ride, but said he first needed to drop off friends near his apartment.

Shannon allegedly took the woman into his bedroom. According to the complaint, he came up behind her, pulled down her pants and attempted to have sex with her.

The complainant said Shannon became frustrated when she wouldn’t cooperate.

Shannon allegedly asked if she was menstruating, and when she said yes, he went to the bathroom. At that time, she left and met a friend in the parking lot, whom the woman had texted to come get her. The friend called the police.